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likoan [24]
3 years ago
6

What is the simplest form of the expression 2x(x − 6) − 7x2 − (13x − 3)?

Mathematics
2 answers:
inna [77]3 years ago
7 0

Answer:

The answer for me was B, but it may be different if the test mixes up the answers... the numerical answer is -5x^2 - 25x +3.

Step-by-step explanation:

I just took the final and got a 100%

lina2011 [118]3 years ago
6 0

Answer:

D. -5x² - 25x - 3

Step-by-step explanation:

Simply distribute where needed, evaluate the distribution, then combine like-terms to arrive at your answer.

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Please answer correctly and answer all questions I will give a heart please
NNADVOKAT [17]

Answer:

1 = A, D    2 = B, C, D .   3 = True .   5 = D .   11 = C, D E

Step-by-step explanation:

5 0
2 years ago
I am only doing 15 points because I have asked questions and they just take advantage of the points and don't actually answer th
wariber [46]
The answer to your question would be y=35x+50
6 0
3 years ago
Hunter invested $750 in an account paying an interest rate of 6\tfrac{5}{8}6 8 5 ​ % compounded continuously. London invested $7
kompoz [17]

Answer: $ 55

Step-by-step explanation:

When interest is compounded continuously, the final amount will be

A=Pe^{rt}

When interest is compounded daily, the final amount will be

A=P(1+\dfrac{r}{365})^{365t}

, where P= Principal , r = rate of interest , t = time

For Hunter , P= $750, r = 6\dfrac{5}{8}\%=\dfrac{53}{8}\%=\dfrac{53}{800}=0.06625

t = 18 years

A=750e^{0.06625(18)}=\$2471.48

For London , P= $750, r = 6\dfrac{1}{2}\%=\dfrac{13}{2}\%=\neq \dfrac{13}{200}=0.065

t = 18 years

A=750(1+\dfrac{0.065}{365})^{18(365)}=\$2416.24

Difference = $ 2471.48 - $ 2416.24 =$ 55.24≈$ 55

Hence, Hunter would have $ 55 more than London in his account .

7 0
3 years ago
3. PLZZZZ HELP MEEE!.!.!
andre [41]

Answer:

60in²

Step-by-step explanation:

Since lateral surface area means all the shapes except the base, we will ignore the square in the middle.

A=1/2(b*h)

A=1/2(10*3)

A=15in²

Now we will multiply the area by 4 or the number of other shapes besides the base.

60in²

3 0
2 years ago
What equals 5 in multiplication and -4 in addition
kirill [66]

Answer:

  • -2 +i
  • -2 -i

Step-by-step explanation:

There is no pair of real numbers that have a total of -4 and a product of 5. The complex numbers (-2+i) and (-2-i) will meet your requirements.

__

If the numbers of interest are 'a' and 'b', they will be zeros of the quadratic whose factored form is ...

  (x -a)(x -b) = 0

Expanding that, we find an opportunity to use the given sum and product numbers:

  x² -(a+b)x +ab = 0

  x² -(-4)x +5 = 0

Rewriting this in vertex form gives ...

  (x² +4x +4) +1 = 0

  (x +2)² +1 = 0

We can find the values of x by subtracting 1 and taking the square root.

  (x +2)² = -1

  x +2 = ±√(-1) = ±i

  x = -2±i

The two numbers of interest are -2+i and -2-i.

4 0
2 years ago
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